# Troubleshooting Unable to Unload Reagents on the NextSeq 500/550 Occasionally, a NextSeq 500/550 may become stuck on the 'Unloading Reagent Cartridge' screen during a wash or run setup. This can be a result of a communication issue between the hardware and software preventing the reagents from unloading properly. **Troubleshooting Steps:** * **If the NextSeq Control Software (NCS) is not frozen:** 1. Exit back to the Main Menu 2. Select 'Manage Instrument' 3. Select 'Unload Consumables' 4. If unable to unload, close and restart NCS 5. If still unable to load, [power cycle](https://knowledge.illumina.com/instrumentation/nextseq-500-550/instrumentation-nextseq-500-550-reference_material-list/000001972) the instrument * **If the NCS *****is***** frozen:** 1. Open 'Task Manager' 2. Locate 'NextSeq Control Software' or 'Instrument Shell' 3. Right-click and select 'end task' 4. Re-launch NCS and proceed with wash/run setup upon successful initialization 5. If the issue persists, power cycle instrument\* If the issue still persists after power cycling, contact [Illumina Technical Support](https://www.illumina.com/company/contact-us.html#/) for assistance. \ \ \
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